Understanding Map Reduce The missing guide
Understanding Map Reduce The missing guide
Spring Data JPA example
Let’s create an application which will use spring data jpa to store the user into the database.
Understanding Joins
Understanding Inner , Outer , left Outer , Right Outer Joins and Cartesian Product
Spark Avro Util
Utils for various Avro Pojo Transformation needed in spark
Create custom annotation with Spring and Aspectj
In this blog we will create the custom annotation using spring and aspectj lib. So let’s assume that we have a rest API and we want to validate the request object for post requests.
Write a CSV text file from Spark
Write a csv file from Spark ,
Spring Password Encryption
Let’s have a look how we can encrypt the user’s password before inserting into the database. Spring provides the PasswordEncoder interface which has multiple implementation. For example let’s use StandardPasswordEncoder.
A standard PasswordEncoder implementation that uses SHA-256 hashing with 1024 iterations and a random 8-byte random salt value. It uses an additional system-wide secret value to provide additional protection.
Continue Reading
DataFrame Join in Spark
Data Frame Join in Spark (shuffle join )
DataFrame Broadcast Join
Broadcast Join
Map Side Joins in Spark
Map Side Join in Spark